Mobile base station carrier chassis structure

Abstract

The utility model discloses a chassis structure of a mobile base station carrier, belongs to the technical field of mobile base stations, and solves the problem that a vehicle body is unstable due to the fact that the distance between wheels of an existing mobile base station carrier is too small. The device specifically comprises a vehicle body, a damping assembly is installed at the bottom of the vehicle body, a fixed axle is connected to the bottom of the damping assembly, a movable shaft assembly is arranged at the end of the fixed axle, and wheels are arranged on the movable shaft assembly; a car jacking assembly is further arranged at the bottom of the car body. According to the utility model, the movable shaft assembly can contract relative to the fixed axle; when the vehicle body is pushed to move, the movable shaft assembly retracts into the fixed axle, and the distance between the two opposite wheels is reduced; when the base station body on the vehicle body is lifted to a certain height for work, the movable shaft assemblies are pulled from the fixed axles to the two sides, the distance between the two opposite wheels is increased, the vehicle body can be stably supported, and the situation that after the base station body is lifted, the gravity center is too high, and consequently the vehicle body topples over is avoided.

Description

Technical Field

[0001] This utility model relates to the field of mobile base station technology, and in particular to a mobile base station carrier chassis structure. Background Technology

[0002] Base stations are a core component of wireless communication networks, undertaking the tasks of signal relay, coverage extension, and data processing between mobile terminals and the core network. Essentially, they are the physical infrastructure for information transmission via radio electromagnetic waves, and the cornerstone for achieving "seamless coverage" and "reliable connectivity" in mobile communication networks. A mobile base station is a small signal base station mounted on a vehicle, used in remote areas or other locations where general network signal coverage is lacking. Existing micro mobile base stations typically consist of the base station itself and a transport vehicle. During use, the vehicle transports it to the work site, and the base station itself is then raised to improve signal transmission and reception. The design of the transport vehicle facilitates easy movement of the base station during operation.

[0003] Chinese utility model patent CN218852626U discloses a mobile base station. This patent mounts the base station body inside a housing and includes casters at the bottom of the housing for easy movement. However, the housing lacks a support mechanism at the bottom, failing to provide stable support. Chinese invention patent CN115665585B discloses a miniature mobile 5G communication base station. This patent mounts the base station body on a transport vehicle for easy movement and includes an auxiliary anti-tipping device to prevent the vehicle from tipping over after the base station's center of gravity is raised. However, the wheel spacing of the transport vehicle in this patent is small and non-adjustable, meaning the four wheels cannot be spread outwards to ensure the transport vehicle is more stably positioned at the work site. Utility Model Content

[0004] In view of the shortcomings of the existing technology, this utility model provides a chassis structure for a mobile base station vehicle, which solves the problem of instability caused by the small wheel spacing of existing mobile base station vehicles.

[0005] To achieve the above objectives, the technical solution adopted by this utility model is as follows:

[0006] A mobile base station vehicle chassis structure includes a vehicle body, a shock-absorbing component installed at the bottom of the vehicle body, a fixed axle connected to the bottom of the shock-absorbing component, a movable axle assembly at the end of the fixed axle, and a wheel mounted on the movable axle assembly; a top-mounted component is also provided at the bottom of the vehicle body.

[0007] In this design, the movable axle assembly can retract relative to the fixed axle; when the vehicle body is moved, the movable axle assembly is retracted into the fixed axle to reduce the distance between the two opposing wheels; when the base station body on the vehicle body is raised to a certain height to prepare for operation, the movable axle assembly can be pulled from the fixed axle to both sides to increase the distance between the two opposing wheels, which can form a stable support for the vehicle body and prevent the vehicle body from tipping over due to the excessive center of gravity after the base station body is raised.

[0008] Furthermore, the movable axle assembly includes a movable axle, one end of which is slidably connected to a telescopic hole at the end of the fixed axle, the telescopic hole being opened along the axial direction of the fixed axle; the other end of the movable axle is movably connected to a wheel; and an adjustment component is provided at the end of the fixed axle, the adjustment component driving the movable axle to move within the telescopic hole.

[0009] In this solution, the distance between the wheels is adjusted by adjusting the movable axle, which extends and retracts from the telescopic hole of the fixed axle.

[0010] Furthermore, the adjusting assembly includes a bearing housing with an opening on one side; a rotary bearing is fixed inside the bearing housing, and the end of the fixed axle is interference-fitted into the inner ring of the rotary bearing; an adjusting nut is connected to one side of the bearing housing opening; the movable axle is threaded with external threads, and the movable axle is threadedly connected to the adjusting nut.

[0011] In this design, rotating the adjusting nut causes the bearing housing to rotate synchronously with it; during the rotation of the adjusting nut, the movable axle is driven to extend and retract inside the telescopic hole through the thread action; this design is simple in structure and easy to adjust.

[0012] Furthermore, a flange is provided on the side of the adjusting nut near the bearing housing, and several lugs are provided around the flange; lugs are also provided on the edge of the bearing housing, and the lugs on the flange and the lugs on the bearing housing are connected by bolts.

[0013] In this design, since the end of the movable axle is connected to a wheel, and the wheel has to bear the weight of the vehicle body, the connection between the movable axle and the fixed axle is extremely important. The adjusting nut not only drives the movable axle to extend and retract, but also provides support for the movable axle. Therefore, the bearing housing is connected by the lugs around the flange, resulting in a high connection strength.

[0014] Furthermore, the movable axle is provided with two sliders at one end inside the telescopic hole, and the two sliders are arranged radially on both sides of the movable axle; the telescopic hole of the fixed axle is machined with two grooves, and the two sliders are slidably arranged in the two grooves respectively.

[0015] In this design, the movable axle is limited by two sliders to prevent it from rotating along with the adjusting nut when it rotates.

[0016] Furthermore, the top vehicle assembly includes a hinged seat, which is fixedly connected to the bottom of the vehicle body; a threaded sleeve is movably connected to the hinged seat, and a threaded support rod is threadedly connected to the bottom of the threaded sleeve, with a caster wheel installed at the bottom of the threaded support rod.

[0017] In this solution, before adjusting the movable axle, the threaded sleeve can be rotated relative to the hinge seat to make it vertical; then the threaded support rod can be rotated to extend the threaded sleeve and lift the vehicle body, at which point the position of the movable axle can be adjusted; this avoids the problem of the wheel track being unable to be adjusted because the vehicle body is pressing down on the wheel.

[0018] Furthermore, four corner nuts are fixedly connected to the threaded support rod.

[0019] In this design, the square nut increases the contact area with the screwdriver or wrench, allowing for the application of greater torque during tightening and thus improving the tightening force.

[0020] Furthermore, hooks are provided at the bottom of the vehicle body; the threaded sleeve is fixed by the hooks when it is rotated to be parallel to the ground.

[0021] Furthermore, the shock absorption assembly includes a leaf spring assembly, which is installed at the bottom of the vehicle body; an axle fixing component is provided at the bottom of the leaf spring assembly, and a fixed axle is provided through the axle fixing component; the fixed axle is fixed to the bottom of the leaf spring assembly by two U-bolts, which are respectively provided on both sides of the axle fixing component.

[0022] In this design, when the base body is raised, the overall center of gravity is high. When it is pushed to move, even a slight unevenness in the road surface will cause the vehicle to bump, and the base station body will shake noticeably. The spring plate assembly can buffer the vibration caused by uneven road surface.

[0023] Furthermore, the axle fastener has a lug on its side, and a saddle bolt passes through the through hole in the middle of the lug.

[0024] The beneficial effects of this utility model are:

[0025] The mobile base station chassis structure provided by this utility model allows a rotating adjusting nut to drive a movable axle to move within the telescopic hole of a fixed axle. When the movable axle extends from the fixed axle, the distance between the two opposing wheels increases, providing stable support for the vehicle body and preventing it from tipping over due to an excessively high center of gravity after the base station body is raised. When the movable axle retracts into the fixed axle, the distance between the two opposing wheels decreases, making it suitable for moving the vehicle body.

[0026] The top-mounted assembly allows for vertical adjustment of the movable axle by rotating the threaded sleeve relative to the hinge seat; then, rotating the threaded support rod extends it out of the threaded sleeve, lifting the vehicle body. This allows for adjustment of the movable axle's position, avoiding the problem of the wheel track being unable to be adjusted due to the vehicle body pressing down on the wheels. Attached Figure Description

[0027] Figure 1 This is a front cross-sectional view of the chassis structure of a mobile base station carrier according to the present invention.

[0028] Figure 2 This is a side cross-sectional view of a mobile base station carrier chassis structure according to the present invention.

[0029] Figure 3 This is a schematic diagram of the adjustment component in this utility model;

[0030] Figure 4 This is a schematic diagram of the cross-sectional structure of the fixed axle and the movable axle in this utility model.

[0031] Figure label:

[0032] 1. Vehicle body; 2. Shock absorption assembly; 21. Spring plate assembly; 22. Axle fixing component; 23. U-bolt; 24. Hanging lug; 3. Fixed axle; 4. Movable axle assembly; 41. Movable axle; 42. Adjustment assembly; 421. Bearing housing; 422. Rotary bearing; 423. Adjusting nut; 424. Ear plate; 43. Slider; 5. Wheel; 6. Top assembly; 61. Hinge seat; 62. Threaded sleeve; 63. Threaded support rod; 64. Caster wheel; 65. Four-corner nut; 66. Hook; Detailed Implementation

[0033] The present invention will be further described below with reference to the accompanying drawings and specific embodiments. The specific embodiments of the present invention are described below to facilitate understanding by those skilled in the art. However, it should be understood that the present invention is not limited to the scope of the specific embodiments. For those skilled in the art, various changes are obvious as long as they fall within the spirit and scope of the present invention as defined and determined by the appended claims. All inventions utilizing the concept of the present invention are protected.

[0034] like Figure 1 and Figure 2 As shown, this embodiment provides a mobile base station vehicle chassis structure. The distance between two wheels in this chassis structure is adjustable, providing stable support for the vehicle body. Specifically, it includes:

[0035] 1. Car body; 2. Shock absorption assembly; 4. Movable axle assembly; 5. Wheels; and 6. Roof assembly.

[0036] The vehicle body 1 is equipped with a base station body; a shock-absorbing component 2 is installed at the bottom of the vehicle body 1, a fixed axle 3 is connected to the bottom of the shock-absorbing component 2, a movable axle component 4 is provided at the end of the fixed axle 3, and a wheel 5 is provided on the movable axle component 4; the movable axle component 4 can retract relative to the fixed axle 3; a top component 6 is also provided at the bottom of the vehicle body 1.

[0037] like Figure 3 As shown, the movable axle assembly 4 includes a movable axle 41. One end of the movable axle 41 is slidably connected to a telescopic hole at the end of the fixed axle 3, and the telescopic hole is opened along the axial direction of the fixed axle 3. The other end of the movable axle 41 is movably connected to a wheel 5. An adjustment assembly 42 is provided at the end of the fixed axle 3, and the adjustment assembly 42 drives the movable axle 41 to move within the telescopic hole. By driving the movable axle 41 to extend and retract from the telescopic hole of the fixed axle 3 through the adjustment assembly 42, the distance between the two wheels 5 can be adjusted.

[0038] The adjusting assembly 42 includes a bearing chamber 421 with an opening on one side. A rotary bearing 422 is fixed inside the bearing chamber 421, and the end of the fixed axle 3 is interference-fitted into the inner ring of the rotary bearing 422. An adjusting nut 423 is connected to one side of the opening in the bearing chamber 421. The movable axle 41 has external threads and is threadedly connected to the adjusting nut 423. Rotating the adjusting nut 423 causes the bearing chamber 421 to rotate synchronously with it. During rotation, the adjusting nut 423 drives the movable axle 41 to extend and retract within the telescopic hole through the thread action. This design is simple and easy to adjust.

[0039] The adjusting nut 423 has a flange edge on the side near the bearing housing 421, and several ear plates 424 are arranged around the flange edge; ear plates 424 are also correspondingly arranged on the edge of the bearing housing 421, and the ear plates 424 on the flange edge and the ear plates 424 on the bearing housing 421 are connected by bolts. Since the end of the movable axle 41 is connected to the wheel 5, and the wheel 5 has to bear the weight of the vehicle body 1, the connection between the movable axle 41 and the fixed axle 3 is extremely important; the adjusting nut 423 not only drives the movable axle 41 to extend and retract, but also provides support for the movable axle 41, and the bearing housing 421 is connected by the ear plates 424 around the flange, resulting in a high connection strength.

[0040] like Figure 4 As shown, the movable axle 41 has two sliders 43 at one end located inside the telescopic hole. The two sliders 43 are arranged radially on both sides of the movable axle 41. The telescopic hole of the fixed axle 3 has two grooves machined inside, and the two sliders 43 are slidably arranged in the two grooves respectively. The movable axle 41 is limited by the two sliders 43 to prevent the movable axle 41 from rotating with the adjusting nut 423 when the adjusting nut 423 rotates.

[0041] The top-mounted assembly 6 includes a hinge seat 61, which is fixedly connected to the bottom of the vehicle body 1. A threaded sleeve 62 is movably connected to the hinge seat 61, and a threaded support rod 63 is threadedly connected to the bottom of the threaded sleeve 62. A caster wheel 64 is installed at the bottom of the threaded support rod 63. Before adjusting the movable axle 41, the threaded sleeve 62 can be rotated relative to the hinge seat 61 to make it vertical. Then, the threaded support rod 63 is rotated to extend out of the threaded sleeve 62, lifting the vehicle body 1. At this time, the position of the movable axle 41 can be adjusted, avoiding the problem of the wheel track being unable to be adjusted because the vehicle body 1 presses down on the wheel 5.

[0042] A four-corner nut 65 is fixedly connected to the threaded support rod 63; the design of the four-corner nut 65 increases the contact area with the screwdriver or wrench, so that a greater torque can be applied during tightening, thereby improving the tightening force.

[0043] The bottom of the vehicle body 1 is provided with a hook 66; when the threaded sleeve 62 is rotated to be parallel to the ground, it is fixed by the hook 66.

[0044] The shock absorption assembly 2 includes a spring plate assembly 21, which is installed at the bottom of the vehicle body 1. An axle fixing member 22 is located at the bottom of the spring plate assembly 21, and a fixed axle 3 passes through the axle fixing member 22. The fixed axle 3 is fixed to the bottom of the spring plate assembly 21 by two U-bolts 23, which are respectively located on both sides of the axle fixing member 22. When the base body is raised, the overall center of gravity is higher, and even slight unevenness in the road surface when it is moved will cause the vehicle body 1 to bump, resulting in noticeable shaking of the base station body. The spring plate assembly 21 can buffer the vibration caused by uneven road surfaces.

[0045] The axle fastener 22 has a lug 24 on its side, and a saddle bolt 23 passes through the through hole in the middle of the lug 24.

[0046] The working principle of this embodiment is as follows:

[0047] Before adjusting the movable axle 41, the threaded sleeve 62 can be rotated relative to the hinge seat 61 to make it vertical; then rotate the threaded support rod 63 so that the threaded support rod 63 extends out of the threaded sleeve 62 and lifts the car body 1. At this time, the position of the movable axle 41 can be adjusted.

[0048] When adjusting the movable axle 41, rotating the adjusting nut 423 drives the movable axle 41 to move within the telescopic hole of the fixed axle 3. When the movable axle 41 extends out of the fixed axle 3, the distance between the two opposing wheels 5 increases, providing stable support for the vehicle body 1 and preventing it from tipping over due to an excessively high center of gravity after the base station body is raised. When the movable axle 41 retracts into the fixed axle 3, the distance between the two opposing wheels 5 decreases, making it suitable for moving the vehicle body 1.

[0049] Those skilled in the art will recognize that the embodiments described herein are intended to help the reader understand the principles of this invention, and should be understood that the scope of protection of this invention is not limited to such specific statements and embodiments. Those skilled in the art can make various other specific modifications and combinations based on these technical teachings disclosed in this invention without departing from the essence of this invention, and these modifications and combinations are still within the scope of protection of this invention.

Claims

1. A mobile base station vehicle chassis structure, characterized by: The utility model provides a kind of vehicle, including car body (1), the bottom of the car body (1) is equipped with damping assembly (2), the bottom of the damping assembly (2) is connected with fixed axle (3), the end of the fixed axle (3) is provided with movable axle assembly (4), and movable axle assembly (4) is provided with wheel (5);The bottom of the car body (1) is also provided with top car assembly (6).

2. The mobile base station vehicle chassis structure of claim 1, wherein: The movable axle assembly (4) includes a movable axle (41), one end of the movable axle (41) is slidably connected in a telescopic hole at the end of the fixed axle (3), and the telescopic hole is opened along the axial direction of the fixed axle (3); the other end of the movable axle (41) is movably connected with the wheel (5); the end of the fixed axle (3) is provided with an adjusting assembly (42), and the adjusting assembly (42) drives the movable axle (41) to move in the telescopic hole.

3. The mobile base station vehicle chassis structure of claim 2, wherein: The adjusting assembly (42) includes a bearing chamber (421), and one side of the bearing chamber (421) is open; a rotary bearing (422) is fixed inside the bearing chamber (421), and the end of the fixed axle (3) is interference-fitted in the inner ring of the rotary bearing (422); an adjusting nut (423) is connected to the side of the bearing chamber (421) that is open; the movable axle (41) is provided with external threads, and the movable axle (41) is threadedly connected with the adjusting nut (423).

4. The mobile base station vehicle chassis structure of claim 3, wherein: The adjusting nut (423) is provided with a flange on the side close to the bearing chamber (421), and a plurality of lugs (424) are arranged around the flange; the edge of the bearing chamber (421) is also provided with lugs (424), and the lugs (424) on the flange and the lugs (424) on the bearing chamber (421) are connected by bolts.

5. The mobile base station vehicle chassis structure of claim 3, wherein: The end of the movable axle (41) located in the telescopic hole is provided with two sliding blocks (43), and the two sliding blocks (43) are arranged radially on both sides of the movable axle (41); two sliding grooves are formed in the telescopic hole of the fixed axle (3), and the two sliding blocks (43) are slidably arranged in the two sliding grooves, respectively.

6. The mobile base station vehicle chassis structure of claim 2, wherein: The top car assembly (6) includes a hinged seat (61), which is fixedly connected to the bottom of the car body (1); a threaded sleeve (62) is movably connected to the hinged seat (61), a threaded support rod (63) is threadedly connected to the bottom of the threaded sleeve (62), and a universal wheel (64) is mounted at the bottom of the threaded support rod (63).

7. The mobile base station vehicle chassis structure of claim 6, wherein: A four-corner nut (65) is fixedly connected to the threaded support rod (63).

8. The mobile base station vehicle chassis structure of claim 6, wherein: A hook (66) is arranged at the bottom of the car body (1); when the threaded sleeve (62) is rotated to be parallel to the ground, the hook (66) is used for fixation.

9. The mobile base station vehicle chassis structure of claim 1, wherein: The shock-absorbing assembly (2) comprises a spring plate group (21) installed at the bottom of the vehicle body (1); the bottom of the spring plate group (21) is provided with an axle fixing member (22), the fixed axle (3) is arranged through the axle fixing member (22); the fixed axle (3) is fixed below the spring plate group (21) through two horse bolts (23), and the two horse bolts (23) are arranged on the two sides of the axle fixing member (22) respectively.

10. The mobile base station vehicle chassis structure of claim 9, wherein: The side surface of the axle fixing member (22) is provided with a hanging ear (24), and the horse bolt (23) is arranged through the through hole in the middle of the hanging ear (24).

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